Maui Data Binding
Guidance for .NET MAUI XAML and C# data bindings, compiled bindings...
Install
npx skills add dotnet/skills --skill maui-data-binding -g -a claude-code -y- Repository
- dotnet/skills5.8k
- Category
- Design
- Updated
- 3d ago
- License
- MIT
- Context cost
- Mediumabout 3,000 tokens
- Runs scripts
- No, instructions only
What it does
Guidance for .NET MAUI XAML and C# data bindings, compiled bindings, INotifyPropertyChanged / ObservableObject, value converters, binding modes, multi-binding, relative bindings, fallbacks, and MVVM best practices. USE FOR: setting up compiled bindings with x:DataType, implementing INotifyPropertyChanged or CommunityToolkit ObservableObject, creating IValueConverter / IMultiValueConverter, choosing binding modes, configuring BindingContext, relative bindings, binding fallbacks, StringFormat, code-behind SetBinding with lambdas, and enforcing XC0022/XC0025 warnings. DO NOT USE FOR: CollectionView item templates and layouts (use maui-collectionview), Shell navigation data passing (use maui-shell-navigation), dependency injection (use maui-dependency-injection), or animations triggered by property changes (use .NET MAUI animation APIs).
.NET MAUI Data Binding
Wire UI controls to ViewModel properties with compile-time safety, correct change notification, and minimal overhead. Prefer compiled bindings everywhere and treat binding warnings as build errors.
When to Use
- Adding
x:DataTypecompiled bindings to a new or existing page - Implementing
INotifyPropertyChangedor CommunityToolkitObservableObject - Creating or consuming
IValueConverter/IMultiValueConverter - Choosing the correct
BindingModefor a control property - Setting
BindingContextin XAML or code-behind - Using relative bindings (
Self,AncestorType,TemplatedParent) - Applying
StringFormat,FallbackValue, orTargetNullValue - Writing AOT-safe code bindings with
SetBindingand lambdas (.NET 9+)
When Not to Use
- CollectionView layouts / templates, use the
maui-collectionviewskill - Shell navigation parameters, use the
maui-shell-navigationskill - Service registration / DI, use the
maui-dependency-injectionskill - Property-change-triggered animations, use built-in .NET MAUI animation APIs
Inputs
- A .NET MAUI project targeting .NET 8 or later
- XAML pages or C# code-behind where bindings are declared
- A ViewModel class (or plan to create one)
Rules That Change the Answer
Apply these to every binding answer, they are the differences between "it compiles" and "it actually updates the UI".
